22010002000 has 160 divisors (see below), whose sum is σ = 64401592320. Its totient is φ = 7102310400.

The previous prime is 22010001991. The next prime is 22010002009. The reversal of 22010002000 is 20001022.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (22010001991) and next prime (22010002009).

It is a Harshad number since it is a multiple of its sum of digits (7).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22010002009) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 191761 + ... + 284239.

It is an arithmetic number, because the mean of its divisors is an integer number (402509952).

Almost surely, 2^22010002000 is an apocalyptic number.

22010002000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22010002000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32200796160).

22010002000 is an abundant number, since it is smaller than the sum of its proper divisors (42391590320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22010002000 is a wasteful number, since it uses less digits than its factorization.

22010002000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92526 (or 92510 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 7.

Adding to 22010002000 its reverse (20001022), we get a palindrome (22030003022).

The spelling of 22010002000 in words is "twenty-two billion, ten million, two thousand".